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M4 highway improvements

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Lane Closures in Place - Junction 17

Work has started on junction 17 of the M4 to install new traffic signals and other associated works. As part of the ongoing works, there will be lane closures in place along the A350 as you approach junction 17. The lane closures will enable work to take place without having to close the entire road. The lane closures will be in place between 09:30-15:00 Monday to Friday.

FAQs


The M4 junction 17 improvements scheme intends to reduce existing congestion on the M4 off-slips and prevent traffic from backing up onto the M4 motorway. The scheme seeks to introduce traffic signals on to two of the arms (the M4 off-slips in both directions) and the corresponding circulatory carriageway. Close

The main works contract is currently expected to commence around August 2017 and will take approximately 6 months to complete.

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The scheme cost of £1.46m will be funded by Highways England (who operate the M4) and the Local Growth Fund, which is administered by the Swindon and Wiltshire Local Enterprise Partnership.

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A policy of improvements to junction 17 has been included in the council’s development plans, including the current Wiltshire Core Strategy, for a number of years. These have been subject to extensive public consultation.

Given the above and the fact than no planning permission is required for the scheme, no formal public consultation has been undertaken.

The full business case is available for viewing from the Swindon and Wiltshire Local Enterprise Partnership.

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The congestion and safety issues which the schemes are designed to address are a reality now and will worsen with increasing traffic and economic and development growth.

Jointly procuring and delivering the schemes provides efficiencies and better value for money.

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Appropriate and safe traffic management measures will be set up to reduce the impact of scheme construction as much as possible. Inevitably, however, there will be some disruption to traffic especially at peak times.

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We have designed a traffic signal control system that controls traffic on the gyratory and the stop lines at the top of the offslips. The reason for this part signalisation scheme was to reduce the extent to which traffic backed up along the offslips onto the motorway mainline at peak times, reducing the number of accidents occurring there.

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We have designed a traffic signal control system that controls traffic on the gyratory and the stop lines at the top of the offslips. The remit for this part signalisation scheme was to reduce the extent to which traffic backed up along the offslips onto the motorway mainline at peak times, reducing the number of accidents occurring there.

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Latest tweets

1 DAY AGO

RT @BBCWiltshire: Very long delays (1 hour 30mins) on the M4 eastbound from just before junction 17 to junction 16 for Swindon West. Two la…

20 Nov 2017 08:40

1 DAY AGO

Work will continue in Zeals this week. The current road closures will be moved along tomorrow and will be in place… https://t.co/uFR54k97SV

20 Nov 2017 08:18

1 DAY AGO

@bikerboater Hi, is this in relation to on-going roadworks in the area? I have located nearby works but it doesn't… https://t.co/tJg855WmnA

20 Nov 2017 08:15

1 DAY AGO

@Eleganza05 Hi Peter, the works will hopefully be completed by the middle of January. The road closures will lifted… https://t.co/vPgSc050Zi

20 Nov 2017 08:12

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Construction Drawing

M4 - Junction 17 Highway Improvements

Construction Drawings

Junction 17 (1) PDF (542kb)
Junction 17 (2) PDF (529kb)
Last updated: 31 October 2017 | Last reviewed: 31 October 2017